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| author | Tim Newsome <tim@sifive.com> | 2021-05-13 17:18:38 -0700 |
|---|---|---|
| committer | Tim Newsome <tim@sifive.com> | 2021-05-13 17:25:46 -0700 |
| commit | 6f0c6f23ceb0e699e0712b4a74069fd599912c87 (patch) | |
| tree | fb8af2ef6de900c74a3df18a9d69c8f1feaf2d0b | |
| parent | 726c06ca3da324cd521a2f7074ea339ec26259d5 (diff) | |
| download | riscv-openocd-6f0c6f23ceb0e699e0712b4a74069fd599912c87.zip riscv-openocd-6f0c6f23ceb0e699e0712b4a74069fd599912c87.tar.gz riscv-openocd-6f0c6f23ceb0e699e0712b4a74069fd599912c87.tar.bz2 | |
Fill the buffer before blocking on 1-byte read.
Speeds up spike64-2 CheckMisa from 3.49s to 2.92s.
Change-Id: Id4d4042b043f560ef90d58777d99cdcc41053b18
Signed-off-by: Tim Newsome <tim@sifive.com>
| -rw-r--r-- | src/jtag/drivers/remote_bitbang.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/src/jtag/drivers/remote_bitbang.c b/src/jtag/drivers/remote_bitbang.c index 90451a7..2e7892c 100644 --- a/src/jtag/drivers/remote_bitbang.c +++ b/src/jtag/drivers/remote_bitbang.c @@ -181,6 +181,10 @@ static int remote_bitbang_sample(void) static bb_value_t remote_bitbang_read_sample(void) { + if (remote_bitbang_start == remote_bitbang_end) { + if (remote_bitbang_fill_buf() != ERROR_OK) + return ERROR_FAIL; + } if (remote_bitbang_start != remote_bitbang_end) { int c = remote_bitbang_buf[remote_bitbang_start]; remote_bitbang_start = |